2026 ICD-10-CM Diagnosis Code R93.1Abnormal findings on diagnostic imaging of heart and coronary circulation
ICD-10-CM Codes›R00–R99›R90-R94›R93
- Billable — Valid for Submission
- Not Chronic
R93.1 is a billable ICD-10-CM diagnosis code for abnormal findings on diagnostic imaging of heart and coronary circulation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 302 through 303. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abnormal findings without diagnosis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal findings diagnostic imaging heart+coronary circulat
- Abnormal radionuclide scan
- Angiocardiography abnormal
- Aortic aneurysm screening abnormal
- Coeur en sabot
- Coronary arteriography abnormal
- Coronary slow flow phenomenon
- Decreased cardiac ejection fraction
- Decreased cardiac function
- Echocardiogram abnormal
- Echocardiogram shows left ventricular diastolic dysfunction
- Echocardiogram shows left ventricular systolic dysfunction
- Enlarged aortic root
- Heart valve calcification
- Left ventricular blood flow - finding
- Left ventricular echogenic stagnant blood
- Left ventricular ejection fraction decreased
- Left ventricular mass
- New left ventricular wall motion abnormality compared to prior study
- Radiographic shadow of heart abnormal
- Radionuclide heart study abnormal
- Right ventricular blood flow - finding
- Right ventricular echogenic stagnant blood
- Right ventricular function - finding
- Right ventricular mass
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Abnormal echocardiogram NOS
- Abnormal heart shadow
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Abnormal, abnormality, abnormalities - See Also: Anomaly;
- coronary circulation - R93.1
- heart - R93.1
- echocardiogram - R93.1
- heart
- shadow - R93.1
- Findings, abnormal, inconclusive, without diagnosis - See Also: Abnormal;
- echocardiogram - R93.1
- heart
- shadow - R93.1
- intrathoracic organs NEC - R93.1
- Pancake heart - R93.1
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Abnormal, abnormality, abnormalities
- diagnostic imaging
- coronary circulation
- Abnormal, abnormality, abnormalities
- diagnostic imaging
- heart
- Abnormal, abnormality, abnormalities
- echocardiogram
- Abnormal, abnormality, abnormalities
- heart
- shadow
- Findings, abnormal, inconclusive, without diagnosis
- echocardiogram
- Findings, abnormal, inconclusive, without diagnosis
- heart
- shadow
- Findings, abnormal, inconclusive, without diagnosis
- radiologic (X-ray)
- intrathoracic organs NEC
- Pancake heart
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Heart Health Tests
Heart diseases are the number one killer in the United States. They are also a major cause of disability. If you do have heart disease, it is important to find it early, when it is easier to treat. Blood tests and heart health tests can help find heart diseases or identify problems that can lead to heart diseases.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R93.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R93.1Overview
Is R93.1 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report abnormal findings on diagnostic imaging of heart and coronary circulation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does R93.1 group to?
When abnormal findings on diagnostic imaging of heart and coronary circulation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 302, 303, with relative weights from 0.6732 to 1.1966 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R93.1 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the abnormal findings on diagnostic imaging of heart and coronary circulation is established, that condition takes the principal position instead.
What is the ICD-9 equivalent of R93.1?
Under the General Equivalence Mappings, abnormal findings on diagnostic imaging of heart and coronary circulation converts to ICD-9-CM 793.2 (nonsp abn intrathor NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
